JP5333040B2 - Navigation device, route search method, and program - Google Patents

Description

  The present invention relates to a navigation device, a route search method, and a program.

  Conventionally, a navigation device has been proposed that has a function of searching for a route to a destination and guiding a guided route according to a search result. The navigation device displays a map around the current location of the host vehicle on the screen and superimposes and displays a current location mark indicating the current location of the host vehicle on the map. And the display of a screen is updated at any time with the change of the present location of the own vehicle.

  In addition, when the departure point and the destination are set by the driver, the navigation device searches for the optimum route from the departure point to the destination using the map data. Then, along with the current location mark, the optimum route is displayed on the screen.

  In such a navigation device, the search condition that takes the shortest time to reach the destination from the current position, the search condition that the distance along the route from the current position to the destination is the shortest, and the current position to the destination The route search is performed using search conditions that make the toll required for traveling up to the lowest.

The following devices have been proposed as the navigation device as described above.
For example, Patent Document 1 discloses a method for searching for a route including a toll road using a fixed search condition.
Also, a method for setting a waypoint and switching route search conditions for each section is generally known.
Further, for example, Patent Document 2 discloses a method of switching search conditions for each region by dividing into regions where the driver often travels and regions where the driver does not travel much.

JP-A-4-361919 JP 2005-227049 A

However, in the method of performing a route search using a fixed search condition specified by a driver as described in Patent Document 1, for example, there is a problem that a route search that matches the actual situation of each driver cannot be performed. there were. For example, if the route search condition is distance priority, the route from the current location to the toll road entrance IC (Inter Change), the toll road segment, and the toll road exit IC to the destination are all route-searched with distance priority. I was sorry.
In addition, in the method of setting route points and switching route search conditions for each section, it is necessary for the driver to set not only the destination but also the point where the search method is switched, and no operations other than the necessary operation are performed. And route search conditions cannot be set.

  Further, for example, in the method of switching the search condition for the region where the driver often travels and the region where the driver does not travel much as described in Patent Document 2, the travel history is used to determine the region where the driver often travels. A large amount of storage devices are required for storage, and every time the travel history is updated, complicated calculation for regional setting is required, which is disadvantageous in terms of cost. Also, since the set areas are wide, such as administrative district units and sightseeing route units, there is a possibility that even if the driver is not really familiar with the area, it may be mistakenly designated as a driving area. is there. On the other hand, in areas where the driver does not travel much, route search is performed arbitrarily based on the recommended search conditions, and therefore route search conditions cannot be arbitrarily set. Furthermore, if the driver sets the search condition switching function as described above to be effective, the route search within a frequently-running area will always be performed under the conditions set by that function. There is a possibility that the search based on the above will not be performed, and the route search result may deviate from the desired result.

  An object of the present invention is to provide a navigation device, a route search method, and a program capable of providing a route search result according to a driver's desire.

The invention described in claim 1 is made to achieve the above object, and includes a display means having a screen for displaying a map, an operating means for setting a destination, and a current position for detecting the current position of the vehicle. A navigation device comprising: a position detection unit; and a control unit that searches for a guide route from the current position to the destination and controls display of the searched guide route on the display unit. A first route search means for searching for a guide route to the nearest interchange on the guide route at the current position; and a second route for searching for a guide route from the nearest interchange on the guide route to the destination at the destination. Route search means,
A route search condition for setting a first condition for causing the first route search means to search for the guide route and a second condition for causing the second route search means to search for the guide route. Setting means, and when the toll road is on the searched guide route, the control means is based on the first condition and the second condition set by the route search condition setting means. Then, the first route search means and the second route search means are caused to re-search the guide route.

  According to a second aspect of the present invention, in the navigation device according to the first aspect, when there is a home on the guidance route, the route search condition setting means is configured so that the current position is the home. The first condition is set as a home peripheral condition, and the second condition is set as a destination peripheral condition.

  According to a third aspect of the present invention, in the navigation device according to the first aspect, in the case where the home is on the guidance route, the route search condition setting unit is configured such that the destination is the home, The first condition is set as a destination peripheral condition, and the second condition is set as a home peripheral condition.

  According to a fourth aspect of the present invention, in the navigation device according to the first aspect, when there is no home on the guidance route, the route search condition setting means sets the first condition and the second condition. It is characterized by being set as a destination peripheral condition.

  The invention according to claim 5 is a display means having a screen for displaying a map, an operating means for setting a destination, a current position detecting means for detecting a current position of a vehicle, and from the current position to the destination. A route search method in a navigation device comprising: a search means for searching the guide route; and a control means for controlling display of the searched guide route on the display means. A first condition for causing the first route search means for searching for a guide route from the current position to the closest interchange on the guide route to the current position when there is a toll road And second route search means for searching for a guide route from the interchange closest to the destination to the destination to the destination. A second condition for setting the first route search means and the second route search means based on the first condition and the second condition set by the route search condition setting means for setting A route search method including a step of re-searching a guide route.

  According to the sixth aspect of the present invention, there is provided a computer having display means having a screen for displaying a map, operation means for setting a destination, current position detecting means for detecting a current position of a vehicle, A second route search means for searching for a guide route from a nearby interchange to the destination; a first condition for causing the first route search means to search for the guide route; and the second route search means. Route search condition setting means for setting a second condition for searching for the guide route, searching for a guide route from the current position to the destination, and there is a toll road on the searched guide route. The first route search means for searching for a guide route from the current position to the closest interchange on the guide route to the current position to search for the guide route. A first condition and a second condition for causing a second route search means for searching for a guide route from the interchange closest to the destination to the destination to search for the guide route. Control means for causing the first route search means and the second route search means to re-search the guide route based on the first condition and the second condition set by the set route search condition setting means; It is a program to make it function as.

  ADVANTAGE OF THE INVENTION According to this invention, the navigation apparatus, route search method, and program which can provide the route search result along with the driver's wish can be provided.

It is a block diagram which shows schematic structure of the navigation apparatus 100 which concerns on this embodiment. It is the figure shown about an example of the route search conditions set when there is a toll road on the route which connects a home and the destination. It is the figure shown about an example of the screen which sets a route search condition. It is the flowchart shown about an example of the route search process performed within the navigation apparatus 100 which concerns on this embodiment.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a block diagram illustrating a schematic configuration of a navigation device 100 according to the present embodiment.
As shown in FIG. 1, the navigation device 100 includes a display unit 1, an operation unit 2, an audio output unit 3, a storage unit 4, a disk drive 5, a VICS module 6, a current position detection unit 7, And a control unit 8 for performing a process for guiding the vehicle to the guide route.

The display unit 1 includes, for example, a display such as an LCD (Liquid Crystal Display), an organic EL (Electro Luminescence) display, and various information (for example, based on display data (such as map data) output from the control unit 8. , Display information for navigation such as a map screen and icons, route guidance, and a vehicle mark indicating the current position of the vehicle).
On the display, a touch panel having a function as the operation unit 2 for detecting an operation by a driver (for example, pressing by a finger or a touch pen) is placed. When the touch panel operation by the driver is detected, the coordinates (pressed coordinates) of the detected position are input to the control unit 8.
The operation unit 2 includes a hard key provided in the navigation device body, a touch panel (soft key) provided integrally with the display of the display unit 1, or a remote controller. When the key operation is performed by the driver, the operation unit 2 creates an operation signal corresponding to this operation and outputs the operation signal to the control unit 8.
The operation unit 2 also has a function as route search condition setting means for setting priority conditions when the control unit 8 searches for a guide route.

  The audio output unit 3 includes an audio processing unit, a D / A converter, an amplifier, a speaker, and the like. The audio output unit 3 converts the audio data instructed from the control unit 8 into an analog signal by a D / A converter and outputs the audio through a speaker.

  The storage unit 4 is composed of, for example, a semiconductor memory, and stores map data 41, audio data 42, and the like. The map data 41 stores, for example, map information covering a wide area (corresponding to a plurality of scales), road information, various symbol information such as facilities, seas, and rivers. Further, the voice data 42 stores, for example, message data including words and phrases necessary for route guidance in advance. The map data 41 and the audio data 42 are magnetic such as a CD-ROM (Compact Disk ROM) and a DVD-ROM (Digital Versatile Disc ROM) that are detachably attached to the navigation device 100 via the disk drive 5. You may make it acquire from the server apparatus connected via an optical recording medium or wireless communication.

  The disk drive 5 reads map data 41 and audio data 42 from a disk-shaped storage medium (for example, CD-ROM, DVD-ROM, etc.) mounted on the disk tray, and stores it in the storage unit 4.

  The VICS module 6 includes antennas for optical communication, FM communication, and 2.4 GHz radio wave communication, and performs optical communication, FM communication, and radio wave communication with the VICS center. The VICS module 6 receives traffic jam information and road traffic information from the VICS center and outputs them to the control unit 8.

The current position detection unit 7 includes a GPS (Global Positioning System) module, an autonomous navigation unit, and the like.
The GPS module includes a GPS antenna (not shown). The GPS antenna receives GPS signals transmitted from a plurality of GPS satellites launched into a low earth orbit. The GPS antenna receives GPS signals transmitted from at least three GPS satellites, detects the absolute current position (latitude, longitude) of the vehicle based on the received GPS signals, and outputs the detected position to the control unit 8. .
The autonomous navigation unit includes an angle sensor, a distance sensor, and the like. The angle sensor detects the angular velocity of the vehicle (the rotation angle in the horizontal direction per unit time) and calculates the amount of change in the moving direction. A distance sensor detects the pulse signal output according to rotation of a wheel, and calculates the moving amount | distance of a vehicle. The autonomous navigation unit calculates a relative position change of the vehicle based on the angular velocity signal and the vehicle speed pulse signal, and outputs the change to the control unit 8.

The control unit 8 includes, for example, a CPU (Central Processing Unit) 81, a RAM (Random Access Memory) 82, a ROM (Read Only Memory) 83, and the like, and controls each unit of the navigation device 100.
The CPU 81 reads the processing program stored in the ROM 83, develops it in the RAM 82, and executes it, thereby controlling the navigation device 100 as a whole.
The RAM 82 expands the processing program executed by the CPU 81 in the program storage area in the RAM 82, and stores the input data and the processing result generated when the processing program is executed in the data storage area.
The ROM 83 is constituted by a semiconductor memory, for example, and stores a processing program, data, and the like in advance. The ROM 83 has, for example, a route search program for re-searching a route in accordance with a route search condition from the home to the nearest IC and a route search condition from the nearest IC to the destination preset by the driver. It is remembered.

In addition, the control unit 8 determines from the current location of the vehicle to the destination set via the operation unit 2 based on the current location information acquired from the current location detection unit 7 and the map data 41 stored in the storage unit 4. A guide route is calculated. Then, using the map data 41 stored in the storage unit 4, a map screen for guiding to the calculated guide route is generated and displayed on the display unit 1.
The control unit 8 also includes first route searching means for searching for a guide route from the current position to the nearest interchange on the guide route to the current location, and a guide route from the nearest interchange on the guide route to the destination. Function as a second route search means for searching for.
Furthermore, the control unit 8 causes the operation unit 2 to perform a first condition for causing the first route search unit to search for a guide route, and a second condition for causing the second route search unit to search for a guide route. And function as route search condition setting means for setting.

As described above, the navigation device 100 according to the present embodiment detects display means (display unit 1) having a screen for displaying a map, operation means for setting a destination (operation unit 2), and the current position of the vehicle. Current position detecting means (current position detecting section 7), a control means (control section 8) for searching for a guide route from the current position to the destination and controlling display of the searched guide route on the display means; .
The navigation device 100 also includes first route search means (control unit 8) for searching for a guide route from the current position to the closest interchange on the guide route to the current position, and from the interchange closest to the destination on the guide route to the destination. Second route search means (control unit 8) for searching for a guide route up to, a first condition for causing the first route search means to search for a guide route, and a guide route for the second route search means. Route search condition setting means (operation unit 2) for setting a second condition for searching, and when the control means has a toll road on the searched guide route, the route search condition Based on the first condition and the second condition set by the setting means, the first route search means and the second route search means are made to search again for the guide route.
As a result, the driver can freely select the route search condition according to the area, and therefore, it is possible to provide a route search result more suitable to the driver's desire.

FIG. 2 is a diagram showing an example of route search conditions set when there is a toll road on the route connecting the home and the destination.
As shown in FIG. 2, “distance priority” is set as a route search condition on a general road from home to the nearest IC (ride IC). In addition, “main line priority” is set as a route search condition on the general road from the getting-off IC to the destination. As described above, the navigation device 100 according to the present embodiment can individually set the route search condition from the home to the nearest IC and the route search condition from the destination nearest IC to the destination. It is.

In general, when use of a toll road is required between the home and the destination, the vicinity of the destination is in a remote place from the home, and there is a high probability that the driver has little experience in traveling. On the other hand, the journey from home to the toll road can be considered an area familiar to the driver.
Therefore, by making it possible to set the route search conditions from the home to the nearest IC and the route search conditions from the nearest IC to the destination according to the driver's preference, it matches the driver's wishes. The purpose is to provide route search results.

FIG. 3 is a diagram showing an example of a screen for setting route search conditions.
When the driver sets a route search condition in the navigation device 100, the display unit 1 displays a route search condition setting screen as shown in FIG. The setting screen is displayed in order from the top: “Normal search condition” setting screen, “Home / destination surroundings switching” setting screen, “Home surroundings” search condition setting screen, and “Destination surroundings” search condition setting screen. Is done. The “normal search condition” includes items such as “distance priority”, “time priority”, and “main line priority”. “Home / destination periphery switching” includes items “Yes” and “No”. “Home area” includes items such as “distance priority”, “time priority”, and “main line priority”. “Destination” includes items such as “distance priority”, “time priority”, and “main line priority”.
By operating this screen, the driver sets a normal route search condition and route search conditions around the home and destination around the toll road. Also, it is set whether or not to enable the function of switching route search conditions around the home and the destination.
Hereinafter, the route search control operation in the navigation device 100 will be described in detail with reference to the flowchart of FIG.

  FIG. 4 is a flowchart illustrating an example of route search processing performed in the navigation device 100 according to the present embodiment. This route search processing is realized by the CPU 81 executing a route search program stored in the ROM 83 when the destination is set in the navigation device 100 by the driver.

As shown in FIG. 4, in step S1, a normal route search is performed. This normal route search is performed according to the normal search condition set in advance by the driver.
In step S2, it is determined whether there is a toll road on the route searched in step S1. If there is a toll road on the route, the process proceeds to the next step S3. If there is no toll road on the route, the route search process is terminated.
In step S3, it is determined whether or not the function of switching the route search condition before and after the toll road is effective. This determination is made according to the setting on the “switch home / destination surroundings” setting screen preset by the driver. If the function is valid, the process proceeds to the next step S4. If the function is invalid, the route search process is terminated.

In step S4, it is determined whether or not there is a home on the route searched in step S1. More specifically, it is determined whether or not a home is set as the departure point or destination of the route. If there is a home on the route, the process proceeds to the next step S5, and if there is no home on the route, the process proceeds to step S9.
In step S5, a route search from the home to the nearest IC is performed. This route search is performed in accordance with the route search condition setting around the home preset by the driver.

In step S6, it is determined whether or not the destination is home. If the destination is home, the process proceeds to the next step S7. If the destination is not home, the process proceeds to step S8.
In step S7, a route search from the departure place to the nearest IC is performed. This route search is performed according to the route search condition (destination peripheral condition) around the destination preset by the driver. This is because the destination is home (Yes in step S6), that is, since the departure point is not home, it is expected that the vicinity of the departure point is an area where the driver does not travel much.
In step S8, a route search from the destination to the nearest IC is performed. This route search is performed according to the route search condition (destination peripheral condition) around the destination preset by the driver.
In step S9, a route search from the departure point and destination to the nearest IC is performed. This route search is performed according to the route search condition (destination peripheral condition) around the destination preset by the driver. This is because there is no home on the route searched in step S1 (No in step S4), that is, the departure place is not a home, so that not only the vicinity of the destination but also the vicinity of the departure place is an area where the driver does not travel much This is because it is expected.

Thus, the navigation device 100 according to the present embodiment has the first condition for causing the first route search means to search for the guide route, and the second condition for causing the second route search means to search for the guide route. And route search condition setting means for setting.
By doing so, for example, from the home to the nearest IC to the home, it is a region that travels well, so the route is searched with priority on the distance, while in the region where the destination from the nearest IC to the destination does not travel much Therefore, it is possible to make a setting such as preferentially searching for a route on a wide road such as a trunk line, and it is possible to provide a route search result more suited to the driver's wishes.
In addition, switching the route search conditions is from the home to the nearest IC to the home and from the nearest destination to the destination IC. It is not necessary to perform complicated calculations, and cost can be reduced.
When the toll road is not used, the route search is performed according to the route search condition (normal route search condition) set in advance by the driver, so that it is not affected by each setting when the toll road is used. It is possible to provide route search results that match the driver's wishes.

In addition, when there is a home on the guidance route and the current position is home, the navigation device 100 sets the first condition as the home peripheral condition and the second condition as the destination peripheral condition.
In addition, when there is a home on the guidance route and the destination is the home, the navigation device 100 sets the first condition as the destination peripheral condition and the second condition as the home peripheral condition.
Further, the navigation device 100 sets the first condition and the second condition as the destination surrounding conditions when there is no home on the guidance route.
As described above, in the navigation device 100 according to the present embodiment, the driver can freely select the route search condition according to the area, and therefore, it is possible to provide a route search result that better matches the driver's desire.

  As mentioned above, although concretely demonstrated based on embodiment which concerns on this invention, this invention is not limited to the said embodiment, It can change in the range which does not deviate from the summary.

  For example, in the above embodiment, the data stored in a disk-shaped storage medium such as a DVD can be read. However, for example, video data stored in a portable storage medium including a USB memory or a memory card is read. A possible I / F may be configured.

  In the above embodiment, it is determined whether or not the departure point or the destination is a home. For example, not only a point registered as a home but also a region within a radius of 500 m from the home is determined. You may do it. This is because the location of the parking lot is far from the home, and if you operate the navigation device 100 while stopping in front of the home, the neighborhood will be inconvenienced, so you want to set a route after moving some cars or shopping in the neighborhood This is because a point registered as a home may not be a starting point, such as thinking of searching for a route to the destination after making a call.

  In addition, the detailed configuration and detailed operation of each device constituting the navigation device 100 can be changed as appropriate without departing from the spirit of the present invention.

DESCRIPTION OF SYMBOLS 100 Navigation apparatus 1 Display part 2 Operation part 3 Audio | voice output part 4 Memory | storage part 41 Map data 42 Audio | voice data 5 Disk drive 6 VICS module 7 Current position detection part 8 Control part 81 CPU
82 RAM
83 ROM

Claims (6)

Display means having a screen for displaying a map;
An operation means for setting a destination;
Current position detecting means for detecting the current position of the vehicle;
In a navigation apparatus comprising: a control unit that searches for a guide route from the current position to the destination and controls display of the searched guide route on the display unit.
First route search means for searching for a guide route from the current location to the closest interchange on the guide route to the current location;
Second route search means for searching for a guide route from the interchange closest to the destination on the guide route to the destination;
A route search condition for setting a first condition for causing the first route search means to search for the guide route and a second condition for causing the second route search means to search for the guide route. Setting means, and
The control means includes
When there is a toll road on the searched guide route, based on the first condition and the second condition set by the route search condition setting means, the first route search means and the second route A navigation device that causes the route search means to search again for the guide route. When there is a home on the guide route,
The route search condition setting means includes:
2. The navigation device according to claim 1, wherein when the current position is home, the first condition is set as a home peripheral condition, and the second condition is set as a destination peripheral condition. When there is a home on the guide route,
The route search condition setting means includes:
2. The navigation device according to claim 1, wherein when the destination is a home, the first condition is set as a destination peripheral condition, and the second condition is set as a home peripheral condition. When there is no home on the guide route,
The route search condition setting means includes:
The navigation apparatus according to claim 1, wherein the first condition and the second condition are set as destination peripheral conditions. A search means having a screen for displaying a map, an operating means for setting a destination, a current position detecting means for detecting the current position of the vehicle, a guide route from the current position to the destination, and searching A route search method in a navigation device comprising: control means for controlling display on the display means of the displayed guide route,
When a toll road is on the searched guide route by the control means, the first route search means for searching for a guide route from the current position to the nearest interchange on the guide route to the current position A first condition for searching for a guide route, and a second route search means for searching for a guide route from an interchange closest to the destination to the destination from the destination Based on the first condition and the second condition set by the route search condition setting means for setting the second condition, the guide route is sent to the first route search means and the second route search means. A route search method including the step of searching again. Computer
Display means having a screen for displaying a map;
Operation means to set the destination,
Current position detecting means for detecting the current position of the vehicle;
Second route search means for searching for a guide route from an interchange closest to the destination on the guide route to the destination;
A route search condition for setting a first condition for causing the first route search means to search for the guide route and a second condition for causing the second route search means to search for the guide route. Setting means,
When searching for a guide route from the current position to the destination, and there is a toll road on the searched guide route, the guide route from the current position to the nearest interchange on the guide route to the current position A first condition for causing the first route searching means to search for the guide route and a second route for searching for the guide route from the interchange closest to the destination to the destination on the guide route Based on the first condition and the second condition set by the route search condition setting means for setting the second condition for causing the search means to search for the guide route, the first route search means and Control means for causing the second route search means to re-search the guide route;
Program to function as.

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